The Panthers issues a blue sweatshirt with "Spacey In Space" to the star of each winning game

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Actor Kevin Spacey waves to the fans during an NHL hockey game between the Florida Panthers and the Detroit Red Wings in Sunrise, Fla., Saturday, March 19, 2016.

On a night that the Florida Panthers handed out cardboard cutouts of actor Kevin Spacey's face, the "House of Cards" star surprised fans by taking off his "Spacey Facey" mask as the videoboard camera panned around the stands.

The Academy Award-winning actor attended the game Saturday night in support of the Panthers, wearing a sweatshirt showing an image of his face.

It started as a joke a few months ago, when the Panthers issued a blue sweatshirt with "Spacey In Space" — his face floating in outer space — to the star of each winning game. After a win, that player would then hand the shirt off to someone else.

Spacey, an Oscar winner for "The Usual Suspects" and "American Beauty," caught wind of it through social media. Whatever "Spacey In Space" means remains a mystery; players have kept their fascination with it a closely guarded inside joke.

Unfortunately for the Panthers, they didn't get a chance to award the hoodie Saturday night after their 5-3 loss to the Detroit Red Wings. Spacey visited briefly with the players in their locker room after the game.

"He came in after (and) we said hi to him," Nick Bjugstad said, "It wasn't as fun as if we would have won, the environment in the locker room. We're down a little bit. We definitely appreciate him coming down, supporting the team."

Spacey's appearance on the scoreboard drew a huge roar from the crowd, many of whom also wore masks of his face.